Posting a photo of a note card with a watercolour pink heart in the centre and the phrase “My weird heart loves your weird heart”, Abigail added the caption: “There are few things more significant or valuable than a friendship that will withstand the test of time. Thank you for getting me. Always.”

It’s unclear whether Abigail created the card or if Swift gave the note to her longtime pal.

The break-up is said to have occurred last week (ends29May16), just days after Calvin was involved in a car accident in Beverly Hills, California, while en route to the airport to catch a flight to Las Vegas for a gig.

Calvin cancelled four appearances following the 20 May (16) crash to give him time to recuperate, but he was well enough to travel back to his native U.K. on Monday (30May16).

Taylor and Calvin began dating last year (15) after being introduced by their mutual friend Ellie Goulding.